Question

SELECT * FROM A, B, C, D WHERE A = 1 AND B RLIKE '^[0-9]'

上面的命令将收集A = 1和B中的数据，从0到9开始。例如，它将收集111,112,113,114等。但是，上面的命令总是会丢失一些数据，相比之下将它分成RLIKE' ^ [0]'，RLIKE'^ [1]'等，如下所示。

SELECT * FROM A, B, C, D WHERE A = 1 AND B RLIKE '^[0]'
SELECT * FROM A, B, C, D WHERE A = 1 AND B RLIKE '^[1]'
SELECT * FROM A, B, C, D WHERE A = 1 AND B RLIKE '^[2]'
SELECT * FROM A, B, C, D WHERE A = 1 AND B RLIKE '^[3]'
SELECT * FROM A, B, C, D WHERE A = 1 AND B RLIKE '^[4]'
SELECT * FROM A, B, C, D WHERE A = 1 AND B RLIKE '^[5]'
SELECT * FROM A, B, C, D WHERE A = 1 AND B RLIKE '^[6]'
SELECT * FROM A, B, C, D WHERE A = 1 AND B RLIKE '^[7]'
SELECT * FROM A, B, C, D WHERE A = 1 AND B RLIKE '^[8]'
SELECT * FROM A, B, C, D WHERE A = 1 AND B RLIKE '^[9]'

在上面的例子中，

SELECT * FROM A, B, C, D WHERE A = 1 AND B RLIKE '^[1]'

它将始终收集111,112,113,114,115,121，其中“115”和“121”是额外的“SELECT * FROM A，B，C，D WHERE A = 1 AND B RLIKE'^ [0-9]'”无法看到。使用REGEXP将具有相同的结果。我可以知道是否有任何评论？谢谢。

We are using MySQL 5.1.39.

Answer 1

不应该有区别。你能给我一个确切的查询吗？上述查询格式错误，难以置之的原因115＆amp; 121没有被选中。

MySQL RLIKE缺少信息

1 个答案: